CN217080461U - Heading machine and urban gate tunnel corner excavation equipment - Google Patents
Heading machine and urban gate tunnel corner excavation equipment Download PDFInfo
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- CN217080461U CN217080461U CN202220128351.0U CN202220128351U CN217080461U CN 217080461 U CN217080461 U CN 217080461U CN 202220128351 U CN202220128351 U CN 202220128351U CN 217080461 U CN217080461 U CN 217080461U
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Abstract
The utility model relates to a heading machine and urban portal tunnel corner excavation equipment, the urban portal tunnel corner excavation equipment comprises a girder extending along the front and back direction and a sliding sleeve assembled on the girder in a sliding way along the front and back direction, a support body is arranged on the girder, and a supporting shoe is arranged on the support body; the sliding sleeve comprises a sleeve body and two movable frames arranged on the left side and the right side of the sleeve body, a transverse telescopic cylinder used for driving the movable frames to move in the left-right direction is arranged between the sleeve body and the movable frames, and a transverse guide structure used for guiding the movable frames to move in the left-right direction is arranged on the sleeve body; the movable frame is connected with a knife arm, the lower part of the knife arm is connected with a wheel type cutter head, and a driving cylinder for driving the sliding sleeve to slide on the main beam is arranged between the supporting body and the knife arm or the sliding sleeve. By adjusting the transverse telescopic cylinder, the movable frame drives the wheel-type cutter head on the cutter arm to move towards the center of the tunnel, so that one side of the cutter head close to the tunnel wall is exposed, and the maintenance and the replacement of the edge hob and internal parts of the wheel-type cutter head are facilitated.
Description
Technical Field
The utility model relates to a heading machine, concretely relates to heading machine's city gate hole shape tunnel corner excavation equipment.
Background
The special-shaped tunnel is a tunnel different from a round tunnel in an urban portal shape, a rectangular shape, a horseshoe shape and the like. The tunnel is extremely wide in application and mainly applied to national defense, energy, traffic, water conservancy and other projects. Compared with a circular tunnel, the space utilization rate is improved by 15-20%, and structural stress and space utilization rate are both considered.
In the field of urban portal-shaped hard rock tunnel construction equipment, the excavation of corners is carried behind a circular section host by utilizing a wheel type cutter head. When the host computer of front portion carries out circular section excavation, the wheeled blade disc at rear portion excavates circular lower part both sides corner, and the two fits and forms city portal tunnel shape tunnel.
The application publication No. CN113586073A discloses a continuous excavation device, which comprises a rear main beam and a sliding box, wherein the rear main beam and the sliding box are sleeved inside and outside the continuous excavation device, the rear main beam extends along the front-rear direction, the sliding box is sleeved outside the rear main beam and can move along the front-rear direction relative to the rear main beam, and the left side and the right side of the sliding box are provided with excavation mechanisms; excavation mechanism includes support arm and wheeled blade disc, and wheeled blade disc passes through the blade disc axle and is connected with the support arm, all is equipped with the slide in the lower part left and right sides of smooth case, and the slide extends along the fore-and-aft direction, and it has the slider to slide in the slide, and the support arm passes through the round pin hub connection on the slider, and the support arm can rotate around the round pin axle. The excavation mechanism further comprises a propelling oil cylinder and a swinging oil cylinder, one end of the propelling oil cylinder is hinged with the sliding block, the other end of the propelling oil cylinder is hinged with the sliding box, and the propelling oil cylinder can enable the sliding block to move in the front-back direction, so that the supporting arm and the wheel type cutter head synchronously move in the front-back direction along with the sliding block; one end of the swing oil cylinder is hinged with the sliding block, the other end of the swing oil cylinder is additionally connected with the supporting arm, and the swing oil cylinder can enable the supporting arm to rotate around the pin shaft so as to enable the wheel type cutter head to rotate around the pin shaft.
When the wheel-type cutter head works, one side of the wheel-type cutter head is tightly attached to the hole wall, and the wheel-type cutter head cannot move in the left-right direction, so that when the hob at the side, close to the hole wall, of the wheel-type cutter head is damaged, the hob is not convenient to replace.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a city portal tunnel corner excavation device, which solves the technical problem that a hob on one side of a wheel type cutter head close to the tunnel wall of a continuous excavation device in the prior art is inconvenient to replace when damaged; an object of the utility model is also to provide a heading machine.
In order to achieve the above purpose, the utility model discloses city portal tunnel corner excavation equipment's technical scheme is:
the urban portal tunnel corner excavation equipment comprises a main beam extending along the front-back direction and a sliding sleeve assembled on the main beam in a sliding manner along the front-back direction, wherein a support body is arranged on the main beam, and a support shoe is arranged on the support body; the sliding sleeve comprises a sleeve body and two movable frames arranged on the left side and the right side of the sleeve body, a transverse telescopic cylinder used for driving the movable frames to move in the left-right direction is arranged between the sleeve body and the corresponding movable frames, and a transverse guide structure used for guiding the movable frames to move in the left-right direction is arranged on the sleeve body; the movable frame is connected with a knife arm, the lower part of the knife arm is connected with a wheel type cutter head, and a driving cylinder for driving the sliding sleeve to slide on the main beam is arranged between the supporting body and the knife arm or the sliding sleeve.
The beneficial effects are that: through set up horizontal telescoping cylinder between cover body and adjustable shelf, when the hobbing cutter that wheeled blade disc hugs closely hole wall one side damaged or blade disc internals damaged, can adjust horizontal telescoping cylinder to drive wheeled blade disc on the tool arm through the adjustable shelf and move to the tunnel center, thereby expose one side that the blade disc hugs closely the hole wall, not only make things convenient for the hobbing cutter of marginal portion to overhaul, change, can open the end cover of blade disc moreover, overhaul, change with the part of blade disc internals.
As a further improvement, the transverse guide structure is a transverse outer sleeve, a transverse inner sleeve is arranged on the movable frame, the transverse inner sleeve is assembled in the transverse outer sleeve in a sliding mode in the left-right direction, and the transverse telescopic cylinder is located in the transverse inner sleeve.
The beneficial effects are that: because the transverse telescopic cylinder is positioned in the transverse inner sleeve, the whole structure is compact while the guide of the movable frame is ensured. Moreover, the transverse telescopic cylinder is prevented from being exposed in the atmospheric environment, and the telescopic rod of the transverse telescopic cylinder is prevented from being polluted.
As a further improvement, a locking member is arranged between the transverse outer sleeve and the transverse inner sleeve and used for locking the transverse inner sleeve and the transverse outer sleeve together after the transverse inner sleeve slides to the position.
The beneficial effects are that: by the design, the bearing capacity of the transverse telescopic cylinder can be reduced, and the transverse telescopic cylinder is prevented from being damaged by higher acting force.
The locking member is a locking pin shaft, the transverse outer sleeve is provided with outer sleeve locking holes, the transverse inner sleeve is provided with inner sleeve locking holes, at least two outer sleeve locking holes and/or inner sleeve locking holes are arranged at intervals along the left-right direction, and the locking pin shaft is inserted into the corresponding outer sleeve locking holes and inner sleeve locking holes so as to lock the transverse inner sleeve and the transverse outer sleeve together.
As a further improvement, the upper side and the lower side of the left side and the right side of the sleeve body are both provided with the transverse telescopic cylinders.
The beneficial effects are that: the design ensures the stability of the movable frame moving along the left and right directions, thereby ensuring the stability of the wheel type cutter moving along the left and right directions.
As a further improvement, the transverse outer sleeve is provided with an oil filling hole for grease to enter between the transverse inner sleeve and the transverse outer sleeve.
The beneficial effects are that: after grease is injected between the transverse inner sleeve and the transverse outer sleeve through the oil injection hole, the transverse inner sleeve and the transverse outer sleeve can be lubricated, and dust between the transverse inner sleeve and the transverse outer sleeve can be cleaned, so that the transverse inner sleeve can slide in the transverse outer sleeve.
As a further improvement, the movable frame is detachably connected with the knife arm.
The beneficial effects are that: the design is convenient for the disassembly and the assembly of the knife arm.
As a further improvement, a vertical connecting sleeve is arranged on the movable frame, the upper part of the cutter arm is positioned in the vertical connecting sleeve, a first connecting hole is formed in the vertical connecting sleeve, a second connecting hole is formed in the cutter arm, and the vertical connecting sleeve and the cutter arm are connected together through a connecting pin shaft inserted in the first connecting hole and the second connecting hole.
The beneficial effects are that: by the design, the movable frame and the knife arm are connected simply and conveniently.
As a further improvement, the vertical connecting sleeves are arranged in two at intervals along the front-rear direction, the upper parts of the cutter arms are of fork arm structures, each fork arm structure comprises two vertical inserting arms arranged in the front-rear direction at intervals, and the vertical inserting arms correspond to the vertical connecting sleeves one by one and are located in the corresponding vertical connecting sleeves.
The beneficial effects are that: the upper part of the cutter arm is designed into a fork arm structure, so that the weight of the cutter arm can be reduced, and the transverse telescopic cylinder is favorable for driving the wheel type cutter head to move left and right.
In order to achieve the above purpose, the utility model discloses the technical scheme of entry driving machine is:
the heading machine comprises a main machine for excavating a circular section and corner excavating equipment for excavating corners on two sides of the circular lower part, wherein the corner excavating equipment comprises a main beam extending along the front-back direction and a sliding sleeve assembled on the main beam in a sliding manner along the front-back direction, a support body is arranged on the main beam, and a supporting shoe is arranged on the support body; the sliding sleeve comprises a sleeve body and two movable frames arranged on the left side and the right side of the sleeve body, a transverse telescopic cylinder used for driving the movable frames to move in the left-right direction is arranged between the sleeve body and the corresponding movable frames, and a transverse guide structure used for guiding the movable frames to move in the left-right direction is arranged on the sleeve body; the movable frame is connected with a knife arm, the lower part of the knife arm is connected with a wheel type cutter head, and a driving cylinder for driving the sliding sleeve to slide on the main beam is arranged between the supporting body and the knife arm or the sliding sleeve.
The beneficial effects are that: by arranging the transverse telescopic cylinder between the sleeve body and the movable frame, when a hob of the wheel type cutter head attached to one side of the tunnel wall is damaged or parts inside the cutter head are damaged, the transverse telescopic cylinder can be adjusted to drive the wheel type cutter head on the cutter arm to move towards the center of the tunnel through the movable frame, so that one side of the cutter head attached to the rock wall is exposed, the hob at the edge part can be conveniently overhauled and replaced, and an end cover of the cutter head can be opened to overhaul and replace the parts inside the cutter head. In addition, according to the size of excavation tunnel diameter, through adjusting horizontal telescoping cylinder to excavation depth is adjusted about the wheel cutter head, satisfies the excavation demand of different section sizes, realizes a tractor serves several purposes, the cost is reduced.
As a further improvement, the transverse guide structure is a transverse outer sleeve, a transverse inner sleeve is arranged on the movable frame, the transverse inner sleeve is assembled in the transverse outer sleeve in a sliding mode in the left-right direction, and the transverse telescopic cylinder is located in the transverse inner sleeve.
The beneficial effects are that: because the transverse telescopic cylinder is positioned in the transverse inner sleeve, the whole structure is compact while the guide of the movable frame is ensured. Moreover, the transverse telescopic cylinder is prevented from being exposed in the atmospheric environment, and the telescopic rod of the transverse telescopic cylinder is prevented from being polluted.
As a further improvement, a locking member is arranged between the transverse outer sleeve and the transverse inner sleeve and used for locking the transverse inner sleeve and the transverse outer sleeve together after the transverse inner sleeve slides to the position.
The beneficial effects are that: by the design, the bearing capacity of the transverse telescopic cylinder can be reduced, and the transverse telescopic cylinder is prevented from being damaged by higher acting force.
The locking member is a locking pin shaft, the transverse outer sleeve is provided with outer sleeve locking holes, the transverse inner sleeve is provided with inner sleeve locking holes, at least two outer sleeve locking holes and/or inner sleeve locking holes are arranged at intervals along the left-right direction, and the locking pin shaft is inserted into the corresponding outer sleeve locking holes and inner sleeve locking holes so as to lock the transverse inner sleeve and the transverse outer sleeve together.
As a further improvement, the upper side and the lower side of the left side and the right side of the sleeve body are both provided with the transverse telescopic cylinders.
The beneficial effects are that: the design ensures the stability of the movable frame moving along the left and right directions, thereby ensuring the stability of the wheel type cutter moving along the left and right directions.
As a further improvement, the transverse outer sleeve is provided with an oil filling hole for grease to enter between the transverse inner sleeve and the transverse outer sleeve.
The beneficial effects are that: after grease is injected between the transverse inner sleeve and the transverse outer sleeve through the oil injection hole, the transverse inner sleeve and the transverse outer sleeve can be lubricated, and dust between the transverse inner sleeve and the transverse outer sleeve can be cleaned, so that the transverse inner sleeve can slide in the transverse outer sleeve.
As a further improvement, the movable frame is detachably connected with the knife arm.
The beneficial effects are that: the design is convenient for the disassembly and the assembly of the knife arm.
As a further improvement, a vertical connecting sleeve is arranged on the movable frame, the upper part of the cutter arm is positioned in the vertical connecting sleeve, a first connecting hole is formed in the vertical connecting sleeve, a second connecting hole is formed in the cutter arm, and the vertical connecting sleeve and the cutter arm are connected together through a connecting pin shaft inserted in the first connecting hole and the second connecting hole.
The beneficial effects are that: by the design, the movable frame and the knife arm are connected simply and conveniently.
As a further improvement, the vertical connecting sleeves are arranged in two at intervals along the front-rear direction, the upper parts of the cutter arms are of fork arm structures, each fork arm structure comprises two vertical inserting arms arranged in the front-rear direction at intervals, and the vertical inserting arms correspond to the vertical connecting sleeves one by one and are located in the corresponding vertical connecting sleeves.
The beneficial effects are that: the upper part of the cutter arm is designed into a fork arm structure, so that the weight of the cutter arm can be reduced, and the transverse telescopic cylinder is favorable for driving the wheel type cutter head to move left and right.
Drawings
FIG. 1 is a schematic structural view of the city gate tunnel corner excavation equipment of the utility model;
FIG. 2 is a left side view of the sliding sleeve of FIG. 1;
FIG. 3 is an enlarged view taken at A in FIG. 2;
in the figure: 11. a front support; 12. an upper support boot; 13. a front shield; 14. a vertical connecting sleeve; 15. a movable frame; 16. a rear shield; 17. a rear support body; 18. a lower support boot; 19. a traveling wheel; 20. a wheel-type cutter head; 21. a cutter arm; 22. a drive cylinder; 23. connecting a pin shaft; 24. a transverse telescopic cylinder; 25. a main beam; 26. a sliding sleeve; 27. a transverse inner sleeve; 28. locking the pin shaft; 29. an oil filler hole; 30. an inner sleeve locking hole; 31. a transverse outer sleeve; 32. a sleeve body; 33. vertical insertion arm.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention, i.e., the described embodiments are only some, but not all embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …," or the like, does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, the terms "front", "back", "upper", "lower", "left" and "right" are based on the orientation and positional relationship shown in the drawings and are only for convenience of description of the present invention, and do not indicate that the device or component referred to must have a specific orientation, and therefore, should not be construed as limiting the present invention.
The features and properties of the present invention are described in further detail below with reference to examples.
The utility model discloses embodiment 1 of city portal tunnel corner excavation equipment:
as shown in fig. 1 and 2, the urban cave-shaped tunnel corner excavation device comprises a main beam 25 and a sliding sleeve 26, wherein the main beam 25 extends in the front-back direction, and the sliding sleeve 26 is sleeved outside the main beam 25 and is slidably assembled on the main beam 25 in the front-back direction. Wherein, the front and back both ends of girder 25 are connected with other equipment of entry driving machine respectively.
In this embodiment, the main beam 25 is provided with a front supporter 11 and a rear supporter 17 outside the sliding stroke of the sliding sleeve 26, that is, the sliding sleeve 26 is located between the front supporter 11 and the rear supporter 17, and both the two supporters are provided with supporting shoes. Wherein, the lower parts of the front supporting body 11 and the rear supporting body 17 are respectively provided with a walking wheel 19 so as to facilitate the movement of the whole excavation equipment.
In the embodiment, the positions and the number of the supporting shoes on the two supporting bodies are the same, for example, the front supporting body 11 is provided with two upper supporting shoes 12 and two lower supporting shoes 18, and the two upper supporting shoes 12 are symmetrically arranged on the left and right sides of the main beam 25 and used for being obliquely supported on the wall of the hole upwards; the two lower supporting shoes 18 are symmetrically arranged at the left and right sides of the main beam 25 and used for obliquely supporting on the wall of the hole.
In this embodiment, a front telescopic shield 13 is disposed between the sliding sleeve 26 and the front support 11, a rear telescopic shield 16 is disposed between the sliding sleeve 26 and the rear support 17, and the front shield 13 and the rear shield 16 are used for shielding the outer surface of the main beam 25, so as to prevent impurities such as dust from falling on the main beam 25 and affecting the sliding of the sliding sleeve 26 on the main beam 25.
As shown in fig. 1 and 2, the left and right sides of the slide bush 26 are provided with cutter arms 21, respectively, the lower portion of the cutter arm 21 is connected with a wheel cutter 20, and the axis of the wheel cutter 20 extends in the left-right direction. A driving cylinder 22 is arranged between the rear supporting body 17 and the cutter arm 21, and the driving cylinder is used for driving the sliding sleeve 26, the cutter arm 21 and the wheel type cutter head 20 to slide on the main beam 25 together. In other embodiments, the drive cylinder may be disposed between the front support and the knife arm.
As shown in fig. 1 and 2, the sliding sleeve 26 includes a sleeve body 32 and two movable frames 15 provided on the left and right sides of the sleeve body 32, and the sleeve body 32 is slidably fitted on the main beam 25 in a front-rear direction.
In this embodiment, the knife arm 21 is detachably connected to the movable frame 15. Specifically, a vertical connecting sleeve 14 is arranged on the movable frame 15, the upper portion of the cutter arm 21 is located in the vertical connecting sleeve 14, a first connecting hole is arranged on the vertical connecting sleeve 14, a second connecting hole is arranged on the cutter arm 21, and the vertical connecting sleeve 14 and the cutter arm 21 are connected together through a connecting pin shaft 23 inserted into the first connecting hole and the second connecting hole, so that the wheel-type cutter head 20 can be conveniently disassembled and assembled. The vertical connecting sleeve 14 can limit the cutter arm 21 in the front-rear direction, and the phenomenon that the personal safety of workers is damaged due to the fact that the wheel type cutter head 20 swings backwards when the driving cylinder 22 fails is avoided. It should be noted that the vertical connecting sleeve 14 has a certain strength to avoid deformation or damage in response to the reaction force of the rock to be cut.
In this embodiment, the vertical connecting sleeves 14 are arranged at intervals in the front-back direction, the upper portion of the cutter arm 21 is of a yoke structure, the yoke structure comprises two vertical inserting arms 33 arranged at intervals in the front-back direction, the vertical inserting arms 33 correspond to the vertical connecting sleeves 14 one by one, the vertical inserting arms 33 are assembled in the vertical connecting sleeves 14 in a guiding and sliding manner in the upper-lower direction, and the connection stability of the cutter arm 21 and the vertical connecting sleeves 14 is further ensured.
As shown in fig. 2 and 3, a lateral expansion and contraction cylinder 24 is provided between the sleeve body 32 and the corresponding movable frame 15, and the lateral expansion and contraction cylinder 24 is used to drive the movable frame 15 to move in the left and right directions with respect to the sleeve body 32.
In this embodiment, the movable frame 15 includes a vertical plate, the vertical connecting sleeve 14 is disposed on the outer side of the vertical plate, the horizontal inner sleeve 27 is disposed on the inner side of the vertical plate, the sleeve body 32 is provided with the horizontal outer sleeve 31, the horizontal inner sleeve 27 is disposed in the horizontal outer sleeve 31 and is in guiding fit with the horizontal outer sleeve 31, and the horizontal outer sleeve 31 is used for guiding the movable frame 15 to move in the left-right direction. The transverse telescopic cylinder 24 is arranged in the transverse inner sleeve 27, one end of the transverse telescopic cylinder 24 is hinged on a vertical plate of the movable frame 15, and the other end of the transverse telescopic cylinder 24 is hinged on the sleeve body 32. Wherein the transverse outer sleeve 31 constitutes the transverse guiding structure.
In this embodiment, the outer side (section line) of the transverse inner sleeve 27 and the inner side (section line) of the transverse outer sleeve 31 are both provided with wear-resistant layers to avoid the abrasion of the transverse inner sleeve 27 and the transverse outer sleeve 31 to affect the guiding precision; wherein, the wearing layer passes through the fix with screw to dismouting when being convenient for change.
In this embodiment, a transverse locking member is disposed between the transverse outer sleeve 31 and the transverse inner sleeve 27, and the transverse locking member is used to lock the transverse inner sleeve 27 and the transverse outer sleeve 31 together after the transverse inner sleeve 27 slides in place. Specifically, the transverse locking member is a locking pin shaft 28, an inner sleeve locking hole 30 is formed in the transverse inner sleeve 27, an outer sleeve locking hole is formed in the transverse outer sleeve 31, a plurality of inner sleeve locking holes 30 are arranged at intervals in the left-right direction, and the locking pin shaft 28 is inserted into the corresponding inner sleeve locking hole 30 and the corresponding outer sleeve locking hole so as to lock the transverse inner sleeve 27 and the transverse outer sleeve 31 together. The locking pin 28 not only serves a positioning function, but also reduces the bearing capacity of the transverse telescopic cylinder 24 by using the shearing resistance function.
In this embodiment, the upper and lower sides of the left and right sides of the sleeve body 32 are provided with two lateral telescopic cylinders 24 to ensure the stability of the movable frame 15 moving in the left-right direction.
As shown in fig. 3, the transverse outer sleeve 31 is provided with oil injection holes 29, and grease is injected between the transverse inner sleeve 27 and the transverse outer sleeve 31 through the oil injection holes 29 to facilitate the sliding of the transverse inner sleeve 27 in the transverse outer sleeve 31.
In this embodiment, the lateral expansion cylinder 24 is a hydraulic cylinder.
The utility model discloses a city portal shape tunnel corner excavation equipment's work flow as follows:
when a conventional straight line section is excavated, the wheel type cutter head 20 meets the requirement of an appointed excavation section by adjusting the transverse telescopic cylinder 24, and then the movable frame 15 is locked by the locking pin shaft 28; then, the lateral expansion cylinder 24 is adjusted to a free state, and the wheel cutter 20 starts excavation work. When the excavation section size of the tunnel changes, the locking pin shaft 28 is pulled out, and the transverse telescopic cylinder 24 is readjusted, so that the wheel type cutter head 20 is adjusted to a new excavation position, and the excavation requirements of different section sizes are met.
When the tunnel is constructed in a transition section of a left small turn and a right small turn, the locking pin shaft 28 is pulled out, and the transverse telescopic cylinder 24 is used for providing supporting force for excavation of the wheel type cutter head 20. When the excavation equipment works, the sliding sleeve 26 slides forwards along the main beam 25, and the transverse telescopic cylinder 24 can be adjusted in a telescopic mode according to the acting force, so that the wheel type cutter head 20 is prevented from being clamped during excavation, self-adaption continuous adjustment of the wheel type cutter head 20 in the whole construction process is achieved, and the reliability and the construction quality of the equipment are improved.
The utility model discloses a city portal tunnel corner excavation equipment according to the size of excavation tunnel diameter, through adjusting horizontal telescoping cylinder to the excavation degree of depth is adjusted about the wheel-type blade disc, satisfies different section size's excavation demand, realizes a tractor serves several purposes, the cost is reduced. And when the hob of the wheel type cutter head close to one side of the hole wall is damaged or parts in the cutter head are damaged, the transverse telescopic cylinder can be adjusted to move the cutter head to the center of the tunnel, so that one side of the cutter head close to the rock wall is exposed, the hob at the edge part is convenient to overhaul and replace, and an end cover of the cutter head can be opened to overhaul and replace the parts in the cutter head.
The utility model discloses city portal tunnel corner excavation equipment's embodiment 2:
the difference between this embodiment and embodiment 1 is that in embodiment 1, the transverse guiding structure is a transverse outer sleeve, the movable frame is provided with a transverse inner sleeve, the transverse inner sleeve is slidably assembled in the transverse outer sleeve in the left-right direction, and the transverse telescopic cylinder is positioned in the transverse inner sleeve. In this embodiment, horizontal guide structure is transverse guide, is equipped with the T type groove that extends along left right direction on the transverse guide, and the inboard of riser is equipped with the horizontal slider that extends along left right direction, and horizontal slider and T type groove adaptation, wherein, the horizontal slider passes through holding screw after sliding on transverse guide and targetting in place and fixes.
The utility model discloses embodiment 3 of city portal tunnel corner excavation equipment:
the difference between the embodiment and the embodiment 1 is that, in the embodiment 1, the locking member is a locking pin shaft, the transverse outer sleeve is provided with an outer sleeve locking hole, the transverse inner sleeve is provided with an inner sleeve locking hole, the inner sleeve locking holes are arranged at intervals in the left-right direction, and the locking pin shaft is inserted into the corresponding outer sleeve locking hole and the corresponding inner sleeve locking hole so as to lock the transverse inner sleeve and the transverse outer sleeve together. In this embodiment, the locking member is a set screw, the transverse outer sleeve is provided with a threaded hole, and the transverse outer sleeve and the transverse inner sleeve are locked together through the set screw.
The utility model discloses embodiment 4 of city portal tunnel corner excavation equipment:
the present embodiment is different from embodiment 1 in that in embodiment 1, the lateral expansion cylinders are provided on both upper and lower sides of the left and right sides of the jacket body. In this embodiment, the left and right sides of the jacket body are provided with only the lateral expansion cylinders on the upper or lower side.
The utility model discloses city portal tunnel corner excavation equipment's embodiment 5:
the difference between this embodiment and embodiment 1 lies in that, in embodiment 1, a vertical connecting sleeve is arranged on the movable frame, the upper portion of the knife arm is located in the vertical connecting sleeve, a first connecting hole is arranged on the vertical connecting sleeve, a second connecting hole is arranged on the knife arm, and the vertical connecting sleeve and the knife arm are connected together through a connecting pin shaft inserted in the first connecting hole and the second connecting hole. In this embodiment, be equipped with the T type groove that extends along upper and lower direction on the adjustable shelf, the upper portion of tool arm is equipped with the arch that extends along upper and lower direction, this arch and T type groove adaptation, and the upper portion of tool arm is passed through holding screw and is fixed on the adjustable shelf.
The utility model discloses embodiment 6 of city portal tunnel corner excavation equipment:
the difference between this embodiment and embodiment 1 is that, in embodiment 1, two vertical connecting sleeves are arranged at intervals along the front-rear direction, the upper portion of the tool arm is a yoke structure, the yoke structure includes two vertical inserting arms arranged at intervals along the front-rear direction, and the vertical inserting arms are in one-to-one correspondence with the vertical connecting sleeves and are located in the corresponding vertical connecting sleeves. In this embodiment, there is one vertical connecting sleeve, and the upper portion of tool arm and vertical connecting sleeve adaptation to connect in vertical connecting sleeve through connecting pin axle.
The utility model discloses embodiment of entry driving machine: the heading machine comprises a main machine for excavating a circular section and corner excavating equipment for excavating corners at two sides of the circular lower part, wherein the corner excavating equipment has the same structure as that of any one of embodiments 1 to 6 of the corner excavating equipment for the urban cave-shaped tunnel, and the details are not repeated here.
The above description is only for the preferred embodiment of the present invention, and the present invention is not limited thereto, the protection scope of the present invention is defined by the claims, and all structural changes equivalent to the contents of the description and drawings of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The urban portal tunnel corner excavation equipment is characterized by comprising a main beam (25) extending along the front-back direction and a sliding sleeve (26) assembled on the main beam (25) in a sliding manner along the front-back direction, wherein a support body is arranged on the main beam (25), and a support shoe is arranged on the support body; the sliding sleeve (26) comprises a sleeve body (32) and two movable frames (15) arranged on the left side and the right side of the sleeve body (32), a transverse telescopic cylinder (24) used for driving the movable frames (15) to move in the left-right direction is arranged between the sleeve body (32) and the corresponding movable frames (15), and a transverse guide structure used for guiding the movable frames (15) to move in the left-right direction is arranged on the sleeve body (32); a knife arm (21) is connected on the movable frame (15), a wheel type cutter head (20) is connected at the lower part of the knife arm (21), and a driving cylinder (22) for driving the sliding sleeve (26) to slide on the main beam (25) is arranged between the supporting body and the knife arm (21) or the sliding sleeve (26).
2. The urban cave-shaped tunnel corner excavation equipment according to claim 1, wherein the transverse guiding structure is a transverse outer sleeve (31), a transverse inner sleeve (27) is arranged on the movable frame (15), the transverse inner sleeve (27) is slidably assembled in the transverse outer sleeve (31) in the left-right direction, and the transverse telescopic cylinder (24) is arranged in the transverse inner sleeve (27).
3. The urban cave-shaped tunnel corner excavation equipment according to claim 2, wherein a locking member is arranged between the transverse outer sleeve (31) and the transverse inner sleeve (27), and the locking member is used for locking the transverse inner sleeve (27) and the transverse outer sleeve (31) together after the transverse inner sleeve (27) slides to a position.
4. The urban door cave tunnel corner excavation equipment according to claim 3, wherein the locking members are locking pin shafts (28), outer sleeve locking holes are formed in the transverse outer sleeve (31), inner sleeve locking holes (30) are formed in the transverse inner sleeve (27), at least two of the outer sleeve locking holes and/or the inner sleeve locking holes (30) are arranged at intervals in the left-right direction, and the locking pin shafts (28) are inserted into the corresponding outer sleeve locking holes and inner sleeve locking holes (30) so as to lock the transverse inner sleeve (27) and the transverse outer sleeve (31) together.
5. The urban cave-shaped tunnel corner excavation equipment according to any one of claims 1 to 4, wherein the transverse expansion cylinders (24) are arranged on the upper side and the lower side of the left side and the right side of the sleeve body (32).
6. The urban cave-shaped tunnel corner excavation equipment according to any one of claims 2 to 4, wherein the transverse outer sleeve (31) is provided with an oil filling hole (29) for grease to enter between the transverse inner sleeve (27) and the transverse outer sleeve (31).
7. The city portal tunnel corner excavation apparatus according to any one of claims 1 to 4, wherein the movable frame (15) is detachably connected with a cutter arm (21).
8. The urban cave-shaped tunnel corner excavation equipment according to claim 7, wherein the movable frame (15) is provided with a vertical connecting sleeve (14), the upper part of the cutter arm (21) is arranged in the vertical connecting sleeve (14), the vertical connecting sleeve (14) is provided with a first connecting hole, the cutter arm (21) is provided with a second connecting hole, and the vertical connecting sleeve (14) and the cutter arm (21) are connected together through a connecting pin shaft (23) inserted in the first connecting hole and the second connecting hole.
9. The urban cave-shaped tunnel corner excavation equipment according to claim 8, wherein the vertical connecting sleeves (14) are arranged at intervals in the front-back direction, the upper parts of the cutter arms (21) are fork arm structures, each fork arm structure comprises two vertical inserting arms (33) arranged at intervals in the front-back direction, and the vertical inserting arms (33) correspond to the vertical connecting sleeves (14) one by one and are located in the corresponding vertical connecting sleeves (14).
10. A heading machine comprising a main machine for excavating a circular section and corner excavating equipment for excavating corners on two sides of the circular lower part, wherein the corner excavating equipment is the corner excavating equipment for the urban cave-shaped tunnel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220128351.0U CN217080461U (en) | 2022-01-18 | 2022-01-18 | Heading machine and urban gate tunnel corner excavation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220128351.0U CN217080461U (en) | 2022-01-18 | 2022-01-18 | Heading machine and urban gate tunnel corner excavation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217080461U true CN217080461U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220128351.0U Active CN217080461U (en) | 2022-01-18 | 2022-01-18 | Heading machine and urban gate tunnel corner excavation equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN217080461U (en) |
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